Denon support was kind to send me a sheet containing the discrete IR codes for my Denon PMA-50 amp. So now it’s up to me to convert those codes to YAML which the Broadlink Mini3 IR transmitter can spit out. I’m stuck. Can anyone help?
Lastly, someone mentioned you should Base64-encode the output for use in YAML. So I added that to the script.
Although the output seems familiar/fitting, it’s just not doing anything. Can you help?
Edit: here is an output I created for POWERON but it doesn’t do anything: JgBmAHE4Dg4ODg4qDg4OKg4ODioODg4ODioODg4ODioOKg4ODg4ODg4ODg4ODg4qDioOKg4ODioODg4ODg4ODg4qDioOKg4qDg4OKg4ODg4ODg4ODg4ODg4ODioODg4qDg4ODg4qDgAJlg0F
@HomeAssistantUser: I did. Two things I did: 1) figured out a working conversion script and 2) change the number of repeats (most important).
I added some line of code to the aforementioned script. Now it converts straight from Pronto to Broadlink YAML. Here is the script. Just go to https://repl.it, select Python 2.7 and paste the script in there.
# Example code
# I grabbed a random code from remote central.
# http://www.remotecentral.com/cgi-bin/codes/3m/video_projector/
#
CodesToConvert = [
# this is one code
"0000 0070 0000 0032 0080 0040 0010 0010 0010 0010 0010 0030 0010 0010 0010 0030 0010 0010 0010 0030 0010 0010 0010 0010 0010 0030 0010 0010 0010 0010 0010 0030 0010 0030 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0030 0010 0030 0010 0030 0010 0010 0010 0030 0010 0010 0010 0010 0010 0010 0010 0010 0010 0030 0010 0030 0010 0030 0010 0030 0010 0010 0010 0030 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0030 0010 0010 0010 0030 0010 0010 0010 0010 0010 0030 0010 0ACE ",
# this is another code (its actually a copy of the first code above just as an example, need a comma to seperate codes)
"0000 0070 0000 0032 0080 0040 0010 0010 0010 0010 0010 0030 0010 0010 0010 0030 0010 0010 0010 0030 0010 0010 0010 0010 0010 0030 0010 0010 0010 0010 0010 0030 0010 0030 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0030 0010 0030 0010 0030 0010 0010 0010 0030 0010 0010 0010 0010 0010 0010 0010 0030 0010 0030 0010 0030 0010 0030 0010 0030 0010 0010 0010 0030 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0030 0010 0010 0010 0010 0010 0010 0010 0010 0010 0030 0010 0ACE"]
import binascii
import struct
import sys
import base64
def pronto2lirc(pronto):
codes = [long(binascii.hexlify(pronto[i:i+2]), 16) for i in xrange(0, len(pronto), 2)]
if codes[0]:
raise ValueError('Pronto code should start with 0000')
if len(codes) != 4 + 2 * (codes[2] + codes[3]):
raise ValueError('Number of pulse widths does not match the preamble')
frequency = 1 / (codes[1] * 0.241246)
return [int(round(code / frequency)) for code in codes[4:]]
def lirc2broadlink(pulses):
array = bytearray()
for pulse in pulses:
pulse = pulse * 269 / 8192 # 32.84ms units
if pulse < 256:
array += bytearray(struct.pack('>B', pulse)) # big endian (1-byte)
else:
array += bytearray([0x00]) # indicate next number is 2-bytes
array += bytearray(struct.pack('>H', pulse)) # big endian (2-bytes)
packet = bytearray([0x26, 0x00]) # 0x26 = IR, 0x00 = no repeats
packet += bytearray(struct.pack('<H', len(array))) # little endian byte count
packet += array
packet += bytearray([0x0d, 0x05]) # IR terminator
# Add 0s to make ultimate packet size a multiple of 16 for 128-bit AES encryption.
remainder = (len(packet) + 4) % 16 # rm.send_data() adds 4-byte header (02 00 00 00)
if remainder:
packet += bytearray(16 - remainder)
return packet
for code in CodesToConvert:
# get rid of spaces in the code.
cleanCode = code.replace(" ","")
# pronto2lirc needs a byte array, convert it
pronto = bytearray.fromhex(cleanCode)
# convert the pronto to LIRC pulse format
pulses = pronto2lirc(pronto)
# convert LIRC pulse format to broadlink
packet = lirc2broadlink(pulses)
print
print binascii.hexlify(packet)
print ""
print base64.b64encode(packet)
# I'm not using this.
# but it was in the original code so I'm leaving it
# if someone compiles a python executable it uses the code below.
if __name__ == '__main__':
for code in sys.argv[1:]:
pronto = bytearray.fromhex(code)
pulses = pronto2lirc(pronto)
packet = lirc2broadlink(pulses)
print
print binascii.hexlify(packet)
With the resulting Broadlink codes, I changed the number of repeats. This way, the IR code doesn’t get blasted just once but 5x in a row. This was key, now my Denon amp is picking up the IR signals consistently.
@matrix Here is a ZIP containing the relevant IR codes for Denon PMA-50. I also included the script to convert from Pronto to Broadlink YAML and the program to convert from Denon to Pronto.
Nice offer. Would be nice if you would post the codes here. Don’t go out of your way though :)
Edit: I just noticed you didn’t convert to yaml. Then it’s not that useful for me, the steps to convert to yaml are the most time consuming. Thanks anyway!
Hi there. I realize this is an old thread but I’m at a loss and really need some help. I have a Denon PMA-800NE amp and they sent me a similar chart with IR codes. I can’t for the life of me figure out what to type into the Pronto Hex generator to get the right codes. I’ve searched all over and can’t figure it out. Could you give me some direction? I would appreciate it greatly. I’ve pulled what’s left of my hair out trying to do this. Thanks!
Amazing man!..thanks so much!..I was able to get HDMI1 to 4 codes from remotecentral and produce working broadlink codes for my Lg Tv!!..Amazing, because I did’t now have those direct input buttons on any of my remotes so no chance to teach those codes to my broadlink or switchbot hub minis…With the produced broadlink codes my Lg Tv’s can switch directly to an specific input, even my old Tvs without webos, etc…Since I have only one broadlink rm4 pro and a bunch of switchbot hub mini distributed around the hose, I use the “new learned” HDMIx codes send it by the rm4 pro to teach the hub mini’s the same commands, so now all IR blasters on the house knows how to switch a Lg tv to the desired input, less delay also than making switchbot API calls…
Can you tell me how you converted the remotecentral codes into Broadlink format? I’m struggling to get the Pronto Hex Codes on there for a device into the Jgxxxxx format.
I believe there must be smarter ways nowadays, but perhaps this is still working for you.
Go to Paizio Python2 Online and copy/paste the script below. Copy your own Pronto Hex codes in the appropriate place & execute.
With the resulting Broadlink codes, you can (and probably should) change the number of repeats. This way, the IR code doesn’t get blasted just once but e.g. 5x in a row. This was key for my Denon amp to pick up the IR signals consistently. Repeats can be changed on this website, tab Change Repeats: https://dimagoltsman.github.io/Random-Broadlink-RM-Code-Generator/#
Script:
# Example code
# I grabbed a random code from remote central.
# http://www.remotecentral.com/cgi-bin/codes/3m/video_projector/
#
CodesToConvert = [
# this is one code
"0000 0070 0000 0032 0080 0040 0010 0010 0010 0010 0010 0030 0010 0010 0010 0030 0010 0010 0010 0030 0010 0010 0010 0010 0010 0030 0010 0010 0010 0010 0010 0030 0010 0030 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0030 0010 0030 0010 0030 0010 0010 0010 0030 0010 0010 0010 0010 0010 0010 0010 0010 0010 0030 0010 0030 0010 0030 0010 0030 0010 0010 0010 0030 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0030 0010 0010 0010 0030 0010 0010 0010 0010 0010 0030 0010 0ACE ",
# this is another code (its actually a copy of the first code above just as an example, need a comma to seperate codes)
"0000 0070 0000 0032 0080 0040 0010 0010 0010 0010 0010 0030 0010 0010 0010 0030 0010 0010 0010 0030 0010 0010 0010 0010 0010 0030 0010 0010 0010 0010 0010 0030 0010 0030 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0030 0010 0030 0010 0030 0010 0010 0010 0030 0010 0010 0010 0010 0010 0010 0010 0030 0010 0030 0010 0030 0010 0030 0010 0030 0010 0010 0010 0030 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0030 0010 0010 0010 0010 0010 0010 0010 0010 0010 0030 0010 0ACE"]
import binascii
import struct
import sys
import base64
def pronto2lirc(pronto):
codes = [long(binascii.hexlify(pronto[i:i+2]), 16) for i in xrange(0, len(pronto), 2)]
if codes[0]:
raise ValueError('Pronto code should start with 0000')
if len(codes) != 4 + 2 * (codes[2] + codes[3]):
raise ValueError('Number of pulse widths does not match the preamble')
frequency = 1 / (codes[1] * 0.241246)
return [int(round(code / frequency)) for code in codes[4:]]
def lirc2broadlink(pulses):
array = bytearray()
for pulse in pulses:
pulse = pulse * 269 / 8192 # 32.84ms units
if pulse < 256:
array += bytearray(struct.pack('>B', pulse)) # big endian (1-byte)
else:
array += bytearray([0x00]) # indicate next number is 2-bytes
array += bytearray(struct.pack('>H', pulse)) # big endian (2-bytes)
packet = bytearray([0x26, 0x00]) # 0x26 = IR, 0x00 = no repeats
packet += bytearray(struct.pack('<H', len(array))) # little endian byte count
packet += array
packet += bytearray([0x0d, 0x05]) # IR terminator
# Add 0s to make ultimate packet size a multiple of 16 for 128-bit AES encryption.
remainder = (len(packet) + 4) % 16 # rm.send_data() adds 4-byte header (02 00 00 00)
if remainder:
packet += bytearray(16 - remainder)
return packet
for code in CodesToConvert:
# get rid of spaces in the code.
cleanCode = code.replace(" ","")
# pronto2lirc needs a byte array, convert it
pronto = bytearray.fromhex(cleanCode)
# convert the pronto to LIRC pulse format
pulses = pronto2lirc(pronto)
# convert LIRC pulse format to broadlink
packet = lirc2broadlink(pulses)
print
print binascii.hexlify(packet)
print ""
print base64.b64encode(packet)
# I'm not using this.
# but it was in the original code so I'm leaving it
# if someone compiles a python executable it uses the code below.
if __name__ == '__main__':
for code in sys.argv[1:]:
pronto = bytearray.fromhex(code)
pulses = pronto2lirc(pronto)
packet = lirc2broadlink(pulses)
print
print binascii.hexlify(packet)
Thanks very much for this code. If anyone else is interested in using it locally, I’ve modified it so it now works with Python 3 (on linux at least).
import binascii
import struct
import base64
def pronto2lirc(pronto):
codes = [int(binascii.hexlify(pronto[i:i+2]), 16) for i in range(0, len(pronto), 2)]
if codes[0]:
raise ValueError('Pronto code should start with 0000')
if len(codes) != 4 + 2 * (codes[2] + codes[3]):
raise ValueError('Number of pulse widths does not match the preamble')
frequency = 1 / (codes[1] * 0.241246)
return [int(round(code / frequency)) for code in codes[4:]]
def lirc2broadlink(pulses):
array = bytearray()
for pulse in pulses:
pulse = int(pulse * 269 / 8192) # 32.84ms units
if pulse < 256:
array += bytearray(struct.pack('>B', pulse)) # big endian (1-byte)
else:
array += bytearray([0x00]) # indicate next number is 2-bytes
array += bytearray(struct.pack('>H', pulse)) # big endian (2-bytes)
packet = bytearray([0x26, 0x00]) # 0x26 = IR, 0x00 = no repeats
packet += bytearray(struct.pack('<H', len(array))) # little endian byte count
packet += array
packet += bytearray([0x0d, 0x05]) # IR terminator
# Add 0s to make ultimate packet size a multiple of 16 for 128-bit AES encryption.
remainder = (len(packet) + 4) % 16 # rm.send_data() adds 4-byte header (02 00 00 00)
if remainder:
packet += bytearray(16 - remainder)
return packet
if __name__ == '__main__':
import sys
for code in sys.argv[1:]:
pronto = bytearray.fromhex(code)
pulses = pronto2lirc(pronto)
packet = lirc2broadlink(pulses)
print()
print("b64:"+base64.b64encode(packet).decode('utf-8'))
I used this to convert codes I pulled directly from RC: Infrared Hex Code Database: Samsung TV Functions Commands (Page 1) to get my samsung tv working with broadlink. It was the only way, because the smart remote that came with my TV is a bluetooth remote and the only IR command it sends is for the power button. And the only thing the samsung HA integrations (core or HACS) are able to do is shut it off.
